Gill drawing frame



Dec. 5, 1933.

' W. HOLDSWORTH GILL DRAWING FRAME Filed Oct. 22. 1931 2 Sheets-Sheet l w. HoLDswoR'rH 1,937,570

lled Oct. 22. 1931 2 Sheets-Sheet Dec. 5, 1933.

Patented Dec. 5, 1933 y I Y t UNET STATES V1,937,570 e GILL DRAWING FRAME Willie Holdsworth, Ilxovidence, It. I. Application Gctober 22,1931'. Serial No. 570,281 7 oiaims. Cris- 129) v This invention relates to taller-bars for gill- French orfSwiss type two setsof opposed gill'f drawing frames and particularly to improvehars are employed vfor combing'Y the brous mai-r` ments in the construction and method of operaterial fed through the machine. The upper and tion of the same. y y lower sets of bars are 'arranged in staggered rea A principal object ofthe inventionis to prolationship with their teeth or needles penetrating' 60 vide an improved faller-bar vwhich will operate into the Ymaterial from. opposite 'directions'. to Y with greater eiciency to straighten and disenform a double comb passing through the bers tog tangle the libersin the gill-box or drawing frame straighten andllay them inparallelism. The gill-f whereby a more completely and uniformly combed bars rest on horizontal saddles and are slid longi-v 10 product is produced. tudinally therealong-bymeans citraverse-screws.65y The present improved taller-bar is intended for which engage their end-portions. 1.. 14 l 'p useV in gill-boxes or drawing frames of the `so- I'Ieretofore, in the construction of taller-bars calledFrench* or Swissl type, wherein twoopfor machines of. the type specified, thelength of posed sets of bars are arranged with their teeth v the intersectingl teeth or pins on ,the opposed bars' E 1.5701 pins extending into the fibers from opposite iS gGVeIned by the dStt'rlCe between thelbOttOmfQ directions and intersecting, and the invention has edge 0f the lllepel bar and the top edge 0f the for its object to so construct the bar that the lower bar. AThat is to say; it has alwaysbeen conteeth on both sets of bars will project completely sidered necessary to make thepins of a lengthf through the mat of bers being treated. Slightly less than the distance 'between the' op- 2c Another object of the invention is to provide a posed bars in Olfdel t0 pOVde Clealaee S0 that. 7o'

taller-bar of the type specified so constructed at the points of the pins will not strike against 'the' its pin-holding edge as to provide a clearance for edges ofthe bars.` 'Y n the points of the pins or teeth of an opposed bar With this previously used construction and ar- Whereby to permit both sets of teeth to project rangement of the bars the teeth willnot penetrate' clear through the fibers being combed. clear through the mass` of, fibers, l the path., of s@ Another object of the invention is to provide an which is conned tothe space betweenvthe edge improved taller-bar of the type specied which or the bottom bar andthat of the upper bar', so is of strong and sturdy construction and durable that all of the rlbersdo not receive a maximum in use over long periods of time. combing action. Stated briefly, the central por- 3o Further objects of the improvements are setv tion of the mass may bethoroughly combed while.v 85r forth in the following specication which deits upper .and lower portions are but partially scribes severalpreferred embodiments of the intreated. For example, wherethe teethof the tWoj` vention, by way of example, as illustrated by the oppositelypositioned sets of'barsfallshort of the accompanying drawings. In the drawings: v space between the bars the centrally disposed Vpor-` Fig. l is a longitudinal elevation or thefallerf tion of vthe mass receives a complete combing ac 9g traversing mechanism at one side of a. gill-draw# tion by all of the teeth ori both sets of bars, but ing frame and illustrating the present improved the fibers at the extremetop and bottom portions feller-bar as applied to use therewith; .i oi the mass are but partially combed bycontact' Fig. 2 is a cross-sectional View taken on line with the teeth of. oneset of-bars, that is `the bot-` 40 2-2 of Fig. l and vshowing two opposed faller-v tom or top bars respectively'.V u 95 bars in operative engagement with the traversing- Y Itis a particular object ci the present inven` screws at both sides of the machine; tion to.overcome this deiiciency of gill-drawing Fig. 3 is an enlarged cross-sectional view taken frames heretofore used by providing means through a series of the upper and lower` fallerwhereby the teeth of bothsetslof yoppo's'edfalle`r--I bars and illustrating the intersecting relation of bars will extend clear through thenflbrous mass V1GO their teeth 0l DlS; being combed. f To accomplish this result `I con-v Fig. 4 is a similar cross-sectional viewshowin struct the taller-bar to'` provide t a clearance for' a moded OIm 0f the Muet-bar; f the points of the teeth on the opposite barwhere- Fig. 5 is a similar cross-sectional view showing by the teethvmay overlap the edges of the bars. a further modied form of construction of the @ne form of constructionfior this purpose.y pro- 1.05 feller-bm; and Y vides each bar with a longitudinally extending Fig. 6 is a .similar View illustrating a still furgroove into whichv the pointsofl the teeth oan ther modification in the construction of thevfalleropposite bar may enter. Through this construebar. tion and arrangement a` maximum combing acf- In gill-drawing. frames of the so-called tionis effected by all .0f the teeth 011 both Sets 11G bers.

Fig. l of the drawings illustrates the arrangement of the traversing-mechanism of a French or Swissk type of gill-drawing frame such as disclosed in my co-pending application for'United States Letters Patent, Serial No. 457,052, led

May 29, 1936., As the present invention relates more particularly to the improved faller-bar for use in such a form of machine, the traversingmechanism'is herein described only in brief as Vrelated thereto. It will be understood, however,

that the traversing means shown in'Fig. 1 has its duplicate at the opposite side of the machine as indicated in Fig. 2 of the drawings.

In the present type of gill-drawing frame the two opposed sets of faller-bars 9 and 10 are arranged with their pins intersecting to be traversed in the same direction during their working l stroke and then carried back in the opposite direction at a different. level to be once more traversed in the first direction. The traversing motion of the bars is accomplished by two pairs of-l traverse-screws at each side of the machine, the

' threads of which engage the ends-of Vthe bars to slide'them on their horizontal saddles or rests` 30, 31,232 and 33 to be later described. Fig. 1

' illustrates the traverse-screws at one side of the screws, respectively,` tobe traversed in theY opposite direction and transferred back to the firstmentionedscrews. 'The four screws at either side ofthe machine arel herein referred to as grouped in pairs for convenience of description. 'Ihe Ylowerpair of screws 2 and 3 operateA on one set of bars 9 and the upper` pair i and 5 on the bars 10 of the other set. The intermediate screws 2 and 4 have threads Yof relatively fine pitchr to traverse the bars with a slow movement'during their` operative stroke, while the Vbottom screw 3 of the lower pair andthe top screw of the upper pair havecoarserthreads of longer lead to traverse the.` bars at aV faster rate. inv their returnstroke.

l The several screws 2,73, i and 5 are journalledv in `a .bearing block 6 Yformed as a part of, or atv tached to, the side frame of the machine and the structed integral' with a shaft or spindle 7 which,

besides beingjournaled in the block 6, has a separate journal in a bearing 8 bolted to the machineframe. At this end of the shaft '7 is 'a bevel-gear 18 arranged to mesh with a similar gear, not shown, on the main drive-shaft of the machine. The screw 3 carriesY a spur gear 19 meshing with a similar gear 20 on its companion screw 2 and the gear 20, in turn, meshes with a similar gear 21 on the next upper screw e, while the gear 2l meshes with a gear 22 on the uppermost screw 5. In this manner the four screws 2,'3, 4 and 5 are connectedto be driven together'inV unison.` It will be seen that the` intermediate Vscrews 2 and 4 turn in opposite rections and their threads are of opposite hand in order to provide for the traverse of the two' sets of faller-bars 9 and l0 in the same direction, or tothe right as viewed in Fig. 1. The

, bottom screw 3 of the' lower pair and the top screw of the upper pair turn in a direction dil opposite to that of their associated screws2 andV crew 2 has cams 35 at its right-hand end for l y `rsuccessively shifting the faller-bars 9 Adown across the end of the saddle 31 at the completion of their traverse to the right, whereby to engage them with the threads of the bottom screw 3 .which traverses them back in the opposite direction for reengagement with the threads of the screw 2 once more. At the left-hand end of the bottom screw 3 are cams 36 which act on the bars 9 tolift them ofi from the saddle 30 and transferthern back into engagement with Vthe threads of the screw, 2. TheV screws 4 and 5 have Vearns of substantially thesame arrangement, the cams 37 at the vright-hand end of the screw Ziacting to raise the faller-bars 19 upwardly across the end of the saddle 33 to engage them with the threads of screw 5; and the cams 38 on the left-'hand end f the screw 5 operating to carry the fallerbars 10 down intothe leading end oi the threads of the screw 4. after the-bars have been returned from thel end of their operative stroke. v y The several traverse-screws rotate Vin unison' 'at the same rate of speed and the rtwo-intermesay,` the opposedbar's of the upper Vand lowersets instead of being arranged in line'with each other are set in staggered relationship'or one v slightly in advance of another. vIt will also be noted by reference to Fig, 2 of the' drawings that the teeth y11 on the opposed hars 9 and 10 are arranged staggeredV or offset relationship longitu'dinally of the bars.

Due to this arrangement the teeth on the opposed bars intersect to adapt `them to be drawny through the fibers to providel a double combing action. v

It hasY been stated that with the present improved form of taller-bar the opposite teeth are arranged to extend completely across the space between the upper and lower bars with their points overlapping the edges of the latter. secure this arrangement I may employ any suitable form of construction ofthe bar as illustrat-v ed in the enlarged sectional views, Figs. 3, 4, 5 and 6. Thebars 9 and 1D are'of conventional type in general, having a relatively narrow vcentral bridge-portion 12 with enlarged ends 13, the extremities of which are formed at the proper inclination to adaptl them tofengage freely in the helical grooves of the traverse-screws. The pinsorteeth 11 are spaced along-the longitudinal edge of the portion 12 of each bar and may e mounted in any suitable manner, for example, by soldering them in drilled holes'v in the bar.

In order to provide'a-V clearance for the points of the pins-or teeth ll'on the opposite bars I may Vform the main or bridge-.portion 12 of each bar That is to say, the lower bar 9 has a groove le extending'along one side of its up- 1.9i

y 1,937,576 pery edge with the pins 'or teeth n heid in `holes at one side of the groove, while each upper bar 10 is formed with a recess-extending along its lower edge as illustrated in Fig. '3. Whenl the bars are assembled in the machine with their ends in engagement with the`threads of the screws 2 and fl, as illustrated'in Figi "i, the pointed ends of the pins `or` teeth 11 Vproject into the recesses 14 whereby they may overlap'the sides of the bars to adapt them to penetrate clear through the mass of material represented `at F in Fig. 3. View that the bat or mass vof fibers is fed through the machine in a path confined between the up# per edges of the lower bars 9 vand `the bottom edges of the Aupper bars 10 so that fibers are never outside Athe range of action of the teeth 1l on the opposite bars 9 and 10.

Fig. 4 illustrates a slightly different formA of.

'.vide the clearance for the pointed ends of the teeth 11, whereby the latter are adapted to project clear through the mass of material coniined to the space between the upper and lower bars.

Fig. 5 illustrates a still further modified form of construction of the bars, the upper edges of the lower bars 9 and the bottom edges of the upper bars 10 being chamiered off cn the side at 16 to provide the clearance for the points ofthe vpins or teeth 1l.

Vteeth or pins which may thus have their ends overlapping the sides of the bars to insure a complete penetration of the teeth through the brous material. The present forms of construction are illustrated only by way ofV example, however, since other variations may be made in the shape or form of the pin-holdingl portion of the fellerbar to provide the clearance for the points of the teeth. When employed in thegill-box or drawing frame the present improvedialler-bar operates in the manner as next explained.

The brous material, indicated at 'F in 3, is fed through the drawing frame by means of drawing-rolls not herein illustrated as they may be of any usual type as well known to those versed in the art. As the mat or bat of fibers F feeds between the two sets of taller-bars 9 and l10 the latter are traversed longitudinally of the material in a direction opposite to the feed thereof. The bars 9 and 10 of the two opposite sets vare carried into position by the cams on the traverse-screws to impale their teeth or pins 11 through the mass of bers and the bars then travel along the saddles 31 and 32 with their pins intersecting in staggered relationship as illus trated in Figs. l and 2. It will be observed by reference to these views that due to the peculiar and novel form of construction of the present improved faller-bar all the pins or teeth on both sets of bars are caused to project clear through vthe mass of material passing between the bars 38,' previously referred to. It will be observed by reference'to this so that no 'portion of thebersmay "escape a complete combing action. Y' v f The operative stroke of the faller-bars iscon-v tinuousV duringl the rotation of ythe traversescrews 2 and 4 and as each pairof opposed bars 9 and 10 reach the endof their traverse along the saddles 31 and 32 'they are replaced lat the opposite end by other bars returnedto position by the screws 3Y and5 and transferred vvinto the threads of the screws 2 and yi by the cams 36 and In this manner the brous material passing through the gill-box. or

drawingframe isgiven a complete and thor-k Vough combing to straighten the fibers and lay them in parallelism to prepare them forl future process'e'sbyN which they` are converted. into thread or yarn.` i

With the present improvement all portions of the brous mass are combed or gilled uniformly and thoroughly, due to the complete penetration of the teeth on the taller-bars through the mass, and none of the fibers may escape thorough combing action and thus causedefects in the nv ished product. 1

lThe present invention thus provides for a more eicient combing action of the feller-bars in the gill-box or drawing frame, resulting in a' uniformly combed and improved product. That vis to say, by the ingenious and novel form of con-` struction as herein illustrated and described the. improved taller-bar is rendered much more eili-v cient for the purpose intended whereby to en-V hance the value of the process to which it is applied by greatly improving the product.

While I have herein shown several preferred forms of construction of the invention, by way of exampla'it is to be understoodthat further modifications may be made Vin the shape of the,

taller-bars and the disposition of 1 their teeth, whereby to provide the improved result specied, without departing from the'spirit or scope of the invention. Therefore, without limiting myself in this respect,I claim:

1. In a gill-drawing frame, the combination Aof opposite traverse-screws, and two sets-of gillbars'extending between the oppositeV screws with their ends in engagement with the threads thereof, said bars having teeth projecting from theirV opposed edges in intersecting` relationship and recesses between the sides of the bars for receiving the points of the opposite teeth'V toprovide for their penetration completely through the set and said bars constructed to provide a clear-` ance for the pointed ends of the teeth whereby they are caused to overlap the sides of the bars.

3. In a gill-drawing frame, the combination of traversing means, and two sets of faller-bars traversed byl said means in opposite parallelY l paths, said bars having spaced teeth projecting in opposite directions across the space between the bars and said bars being provided With openings along their sides for receiving'the points of the teeth.

4. In a gill-drawing frame, the combination of two sets of gill-bars arranged to be traversed in opposite parallel paths and provided with teeth projecting fromv their edges across the space between the bars; said bars having clearance spaces between the pin-holding portions of adjacent bars for receiving the points of the pins on the oppo-l the space at theside of the narrowed section of an opposite bar. Y

v6. Inacoznbination, opposite sets ofpfaller-hars adapted to be traversed in parallel courses, said bars carrying projecting teeth spaced therealong,

and each barof a set havingits longitudinal portion chamfered on its lateral edge ,adjacent the row of teeth to provide that whenthe bars of the opposite sets are traversed with their teeth in parallel relationship the pointsfof the teeth on one bar may project into the space formed by* the chamfered side of an opposite har. i

7; In combination, opposite sets ofgfaller-bars `adapted to be traversed in parallel courses, said bars having spaced teeth projecting therefrom,

l and each bar of a set having .a recess extending along one edge at the side of the teeth to provide that when the bars are traversed in opposed relationship the points of the teeth on one bar may project into the recess at the side o f an opposite bar. i v v j K Y,

WILLIE IJIOLDSOlFtTHV soY 

